[chore] Update version number in POM file for v7.4.1 release (#325)

Author: nwithan8

pom.xml

@@ -6,7 +6,7 @@
     <groupId>com.easypost</groupId>
     <artifactId>easypost-api-client</artifactId>
 
-    <version>7.4.0</version>
+    <version>7.4.1</version>
     <packaging>jar</packaging>
 
     <name>com.easypost:easypost-api-client</name>